GB1600703A - Central control systems for vehicles - Google Patents

Central control systems for vehicles Download PDF

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Publication number
GB1600703A
GB1600703A GB17670/78A GB1767078A GB1600703A GB 1600703 A GB1600703 A GB 1600703A GB 17670/78 A GB17670/78 A GB 17670/78A GB 1767078 A GB1767078 A GB 1767078A GB 1600703 A GB1600703 A GB 1600703A
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United Kingdom
Prior art keywords
central control
pressure medium
control system
vehicles
energy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB17670/78A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1600703A publication Critical patent/GB1600703A/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/016—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
    • B60G17/0164—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input mainly during accelerating or braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/0195—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the regulation being combined with other vehicle control systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
    • B60T13/148—Arrangements for pressure supply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • B60T17/225—Devices for monitoring or checking brake systems; Signal devices brake fluid level indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/321—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration deceleration
    • B60T8/328—Systems sharing components with other fluid systems onboard the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/07—Supply of pressurised fluid for steering also supplying other consumers ; control thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Description

(54) IMPROVEMENTS IN OR RELATING TO CENTRAL CONTROL SYSTEMS FOR VEHICLES (71) We, ROBERT BOSCH GMBH, a German company of Postfach 50, 7 Stuttgart 1, Federal Republic of Germany, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: The present invention relates to central control systems for vehicles in which a central source of energy supplies at least two pressure medium systems equipped with loads.
In one known central control system a lubricating oil pump is used in order to supply all the hydraulic systems on a vehicle with the same hydraulic pressure medium.
This known control system has the disadvantage that, when there is a leak in one system, the other systems soon suffer from a deficiency of pressure, and there is the risk that the entire apparatus will fail.
According to the present invention there is provided a central control system for vehicles, particularly motor vehicles, having a central source of energy for at least two different pressure medium systems equipped with loads, comprising pressure medium or electrically controlled valves by means of which in response to a respective control command energy can be fed to the respective pressure medium system and its load or loads or an energy source can be shut off from the respective pressure medium system, and, for producing control commands for said valves, an electronic control device responsive to electric or electronic switching means, and an hydraulic central control unit, whereby when there is a leak in one of the pressure medium systems, the faulty system can be shut off from the other systems or can be switched off.
A central control embodying the present invention can have the advantage that, when a leak occurs in one system, that system can be shut off from the source of energy, and any other system which is still intact can thereby be protected.
Preferably a priority logic is associated with the electronic switching means. Such priority logic can be used to monitor, for example, the important vehicle brake system in order to maintain the braking capacity of the vehicle in all cases.
The invention will be further described by way of example with reference to the accompanying drawings in which : Fig. 1 is a diagramamtic illustration of a central control system according to a first embodiment of the invention; Fig. 2 is a diagrammatic illustration of a detail of the construction of the system of Fig. 1; and Fig. 3 is a diagrammatic illustration of part of a central control system of different construction according to another embodiment of the invention.
Fig. 1 shows a central control system which has a plurality of associated hydraulic or pneumatic systems. The systems are as follows: a, for example, hydraulic brake system 1 having a central control unit 37 and having a pedal-operated brake force booster 2 and two brake circuits I and II; the supply of pressure medium to the brake system is controlled by a two port, two position valve 3; an hydraulic adjusting piston system 4 having an adjusting cylinder 5 for driving a flap 6 or levers or the like; the supply of pressure medium to the adjusting piston system 4 is controlled by a three port, two position valve 7; an hydraulic servo steering system 8 having a steering valve 9 having a steering cylinder 9', an individual pressure reservoir 10 together with pressure switch 11 and nonreturn valve 12; the supply of pressure medium to the steering system 8 is controlled by a two port, two position valve 13; an hydro-pneumatic suspension system 14 having a supension cylinder 15 and a doublevalve arrangement 16 for feeding and discharging energy into and out of the corresponding circuits I and II; an hydraulic adjusting system 17 having an adjusting cylinder 18 for actuating a switch 19; and, finally, a separating system 20 having a pump cylinder 21 with separate toppingup reservoir 22 and a non-return valve 23; the pump piston is operable by the pressure in the hydraulic central control for the purpose of increasing the pressure, and the relief of the system 20 is controlled by means of a two port, two position valve 24.
A fluid reservoir 25 having a level switch 26 is provided on the brake force booster 2. Furthermore, the central control also includes a pump 27 and a reservoir 28, and an electronic control device 29 having electrical connection leads 30, 31, 32 and 33 leading to the level switch 26, a pedal switch 34, a position switch 35 on the adjusting cylinder 5, and a position switch 36 on the suspension cylinder 15. The hydraulic sysems, 1, 4, 8, 14, 17 and 20 each operate in a known manner and will not be further described. The multi-position valves 3, 7, 13, 16, which are operable electrically or by pressure medium, can switch the systems 1, 4, 8 and 14 on and off. This is effected directly by the central control unit 37 in the case of system 17, and the multi-position valve 24 undertakes the switching operation in the case of system 20.
Any system is switched off when a leakage or some other fault occurs in the system.
Fig. 2 shows various possibilities of sensing a leakage. The topping-up reservoir 25, illustrated in Fig. 1 is shown again in Fig.
2, and it will be seen that the reservoir is provided with a plurality of level switches 38, 39, 40 and 41, instead of only one level switch, and is also provided with three chambers 44, 45 and 46 separated by two partitions 42 and 43. The partition 43 is located between the two brake circuits I and II, and is slightly lower than the parti- tion 42. The reservoir 25 is secured to the brake force booster 2 and has an individual connection line for each brake circuit I and II and a connection line 47 leading to the pump 27.
In a construction of this type, the leakage sensing arrangement operates in a test programme in the following manner: When the switch 38 indicates "empty", a first warning, which, preferably, should operate intermittently, is given in order to draw the driver's attention to the fault by means of a flashing warning lamp, for example, during starting.
If the switch 41 responds the brake is defective. A full warnmg is then given.
A second warning lamp, or the same warning lamp, flashes when the switch 39 responds. A load other than the brakes is defective. It is also possible to perform a test programme without the switch 38.
The switch 41 may be omitted when using the switch 40 which, preferably, is in the form of a multiple level switch for all the secondary loads. The test programme then takes place in the following manner: When the switch 38 indicates "empty", the individual secondary loads are switched off one after the other, that is, the supply of pressure for the secondary loads is interrupted in succession. If, for example, one of the secondary loads is switched on and the level continues to drop, it will be seen that this secondary load has the leak which is being traced.
A simplified solution of the lastmentioned embodiment resides in giving priority to the brakes and the steering.
When the switch 38 then responds, the supply of pressure medium only to the brakes is switched on. If the test result for the brakes is positive, the steering is then tested. If this test also does not indicate a leak, the secondary loads remain shut off from the inflow of energy.
Fig. 3 shows a modification of tie construction of Fig. 1, so that the same reference numerals are used for the same parts.
However, in the present instance, a pressure switch 51, acting as a pressure sensor, and a two port, two position solenoid valve 52 are additionally used and are connected to the electronic control device 29.
Test sequence: When the switch 26 is switched off as a result of a fall in the level in the reservoir 25, the control device 29 shuts off the flow of energy to the central control unit 37 by way of the solenoid valve 52, and from the pump 27 to the reservoir 28. The valve 7 is closed. If the result of the test is positive, that is, a pressure drop is not measured, all the valves of the brake system are leakproof. The next load, the hydraulic adjusting piston system 4, is then switched on by way of the valve 7. The system 4 is switched off again if a leak is not detected therein. In this manner, all the secondary loads are tested in sequence until the leak responsible for the dro in level has been found.
he test logic can be influenced by, for example, a vehicle speed signal so that the brakes can be tested only when the vehicle is stationary as this has the advantage that, in such a case, the full brake pressure can be shut off. It is also conceivable to use an additional accelerator pedal signal for this purpose. It is also possible to use pneumatic pressure sensors for detecting leaks in compressed air systems.
It is conceivable for the level andlor the pressure sensors to have linear measured value detection or measured value evaluation characteristics. However, it is also possible to undertake the detection or evaluation of the measured value in steps

Claims (8)

or stages. WHAT WE CLAIM IS:-
1. A central control system for vehicles, particularly motor vehicles, having a central source of energy for at least two different pressure medium systems equipped with loads, comprising pressure medium or electrically controlled valves by means of which in response to a respective control command energy can be fed to the respective pressure medium system and its load or loads, or an energy source can be shut off from the respective pressure medium system, and, for producing control commands for said valves.
an electronic control device responsive to electric or electronic switching means, and an hydraulic central control unit, whereby when there is a leak in one of the pressure medium systems, the faulty system can be shut off from the other systems or can be switched off.
2. A central control system as claimed in claim 1, in which a priority logic in respect of the vehicle brake system is associated with the electronic switching means.
3. A central control system as claimed in claim 1 or 2, in which level sensors in a reservoir for pressure medium are used for sensing leaks.
4. A central control system as claimed in claim 1 or 2, in which a combination of level sensors and pressure sensors is used for sensing leaks.
5. A central control system as claimed in claim 1, 2, 3 or 4, including a warning lamp which can be illuminated intermittently in the event of failure of a component which does not essentially influence the safety of the vehicle.
6. A central control system for vehicles, particularly motor vehicles, having a central source of energy for at least two different pressure medium systems, constructed and arranged and adapted to operate substantially as hereinbefore particularly described with reference to and as illustrated in Fig.
1 of the accompanying drawings.
7. A central control system as claimed in claim 6, embodying the feature constructed and arranged and adapted to operate substantially as hereinbefore particularly described with reference to and as illustrated in Fig. 2 of the accompanying drawings.
8. A central control system for vehicles, particularly motor vehicles, having a central source of energy for at least two different pressure medium systems, constructed and arranged and adapted to operate substantially as hereinbefore particularly described with reference to and as illustrated in Fig.
3 of the accompanying drawings.
GB17670/78A 1977-06-11 1978-05-04 Central control systems for vehicles Expired GB1600703A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772726465 DE2726465A1 (en) 1977-06-11 1977-06-11 CENTRAL CONTROL FOR VEHICLES

Publications (1)

Publication Number Publication Date
GB1600703A true GB1600703A (en) 1981-10-21

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Family Applications (1)

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GB17670/78A Expired GB1600703A (en) 1977-06-11 1978-05-04 Central control systems for vehicles

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DE (1) DE2726465A1 (en)
FR (1) FR2393706B1 (en)
GB (1) GB1600703A (en)
SE (1) SE444148B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2234027A (en) * 1989-06-29 1991-01-23 Bosch Gmbh Robert A hydraulic vehicle braking system having a device for limiting drive slip
CN102171080A (en) * 2008-09-30 2011-08-31 爱皮加特股份公司 Central pressure supply for auxiliary drives of a motor vehicle
EP3689691A1 (en) * 2019-01-31 2020-08-05 Kabushiki Kaisha Toyota Jidoshokki Brake system
CN111601741A (en) * 2017-12-14 2020-08-28 大陆-特韦斯股份有限公司 Method for operating a brake system and brake system
US20210053546A1 (en) * 2019-08-19 2021-02-25 Zf Active Safety Gmbh Method for testing a brake fluid sensor
US11292443B2 (en) 2017-11-30 2022-04-05 Robert Bosch Gmbh Method for the functional testing of an electromechanical fill level monitoring device

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Publication number Priority date Publication date Assignee Title
FR2482917A1 (en) * 1980-05-22 1981-11-27 Citroen Sa BRAKE CONTROL INSTALLATION FOR VEHICLE AND ASSEMBLY ASSEMBLY FOR SUCH INSTALLATION
DE3237959A1 (en) * 1981-11-14 1983-05-26 Robert Bosch Gmbh, 7000 Stuttgart Hydraulic dual circuit servo brake device
US4537029A (en) * 1982-09-23 1985-08-27 Vickers, Incorporated Power transmission
DE3337800A1 (en) * 1982-10-30 1984-05-03 Robert Bosch Gmbh, 7000 Stuttgart MULTI-CIRCLE PRESSURE BRAKE SYSTEM
DE3319408A1 (en) * 1983-05-28 1984-11-29 Robert Bosch Gmbh, 7000 Stuttgart POWER STEERING DEVICE WITH AT LEAST ONE HYDRAULIC ADDITIONAL CONSUMER CONNECTED TO IT
DE3410033A1 (en) * 1984-03-19 1985-09-26 Alfred Teves Gmbh, 6000 Frankfurt DEVICE FOR HYDRAULIC ASSISTANCE OF THE STEERING FORCE
DE3512110A1 (en) * 1985-04-03 1986-10-09 Alfred Teves Gmbh, 6000 Frankfurt Apparatus for monitoring a hydraulic system
DE3526763A1 (en) * 1985-07-26 1987-02-05 Daimler Benz Ag Arrangement for regulating the pressure in the pneumatic devices of motor vehicles
DE3612944A1 (en) * 1986-04-17 1987-10-22 Teves Gmbh Alfred HYDRAULIC SYSTEM, ESPECIALLY FOR MOTOR VEHICLES
DE3709059A1 (en) * 1987-03-19 1988-09-29 Teves Gmbh Alfred SAFETY RELAY CIRCUIT FOR SWITCHING ON ELECTRIC VEHICLE UNITS
DE3731279A1 (en) * 1987-09-17 1989-04-06 Teves Gmbh Alfred LEVEL CONTROL SYSTEM FOR MOTOR VEHICLES
DE3804961C2 (en) * 1988-02-18 2001-08-30 Mannesmann Vdo Ag Method for controlling the pressure in the air chambers of a seat
DE3909210A1 (en) * 1989-03-21 1990-09-27 Teves Gmbh Alfred ELECTROHYDRAULIC STEERING AID FOR MOTOR VEHICLES
DE3911531A1 (en) * 1989-04-08 1990-07-26 Daimler Benz Ag Hydraulic system for motor vehicles
DE9403577U1 (en) * 1994-03-03 1994-06-30 Xaver Fendt GmbH & Co, 87616 Marktoberdorf Pressure medium supply for a hydropneumatic, level-controlled axle suspension of a work vehicle
GB9416836D0 (en) * 1994-08-19 1994-10-12 Automotive Products Plc Fluid pressure supply system
US5701248A (en) 1994-11-25 1997-12-23 Itt Automotive Europe Gmbh Process for controlling the driving stability with the king pin inclination difference as the controlled variable
US5710705A (en) 1994-11-25 1998-01-20 Itt Automotive Europe Gmbh Method for determining an additional yawing moment based on side slip angle velocity
US5742507A (en) 1994-11-25 1998-04-21 Itt Automotive Europe Gmbh Driving stability control circuit with speed-dependent change of the vehicle model
US5710704A (en) 1994-11-25 1998-01-20 Itt Automotive Europe Gmbh System for driving stability control during travel through a curve
US5732378A (en) 1994-11-25 1998-03-24 Itt Automotive Europe Gmbh Method for determining a wheel brake pressure
US5774821A (en) 1994-11-25 1998-06-30 Itt Automotive Europe Gmbh System for driving stability control
US5694321A (en) 1994-11-25 1997-12-02 Itt Automotive Europe Gmbh System for integrated driving stability control
DE19515060A1 (en) 1994-11-25 1996-05-30 Teves Gmbh Alfred Vehicle wheel braking force determn. by reference speed comparison
US5732379A (en) 1994-11-25 1998-03-24 Itt Automotive Europe Gmbh Brake system for a motor vehicle with yaw moment control
US5711024A (en) 1994-11-25 1998-01-20 Itt Automotive Europe Gmbh System for controlling yaw moment based on an estimated coefficient of friction
US5732377A (en) 1994-11-25 1998-03-24 Itt Automotive Europe Gmbh Process for controlling driving stability with a yaw rate sensor equipped with two lateral acceleration meters
DE19538974B4 (en) * 1995-10-19 2004-05-13 Continental Teves Ag & Co. Ohg braking system

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DE2345860A1 (en) * 1970-09-23 1975-03-27 Teldix Gmbh Hydraulic brake system with leak detector - monitors reservoir fluid level and pressure and shuts off respective brakes
DE2265197A1 (en) * 1972-10-02 1976-12-16 Teldix Gmbh Hydraulic supply for vehicle brakes - with take off for windscreen wiper drive having spring return action
DE2360139A1 (en) * 1973-12-03 1975-06-05 Teldix Gmbh Pressurised fluid supply system for motor vehicle - has central pump and valve kept open by given pressure level
DE2504712A1 (en) * 1975-02-05 1976-08-19 Daimler Benz Ag Control valves for central hydraulic system - with combined piston and ball valve elements for non jamming operation

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2234027A (en) * 1989-06-29 1991-01-23 Bosch Gmbh Robert A hydraulic vehicle braking system having a device for limiting drive slip
CN102171080A (en) * 2008-09-30 2011-08-31 爱皮加特股份公司 Central pressure supply for auxiliary drives of a motor vehicle
CN102171080B (en) * 2008-09-30 2014-02-26 爱皮加特股份公司 Central pressure supply for auxiliary drives of a motor vehicle
US11292443B2 (en) 2017-11-30 2022-04-05 Robert Bosch Gmbh Method for the functional testing of an electromechanical fill level monitoring device
CN111601741A (en) * 2017-12-14 2020-08-28 大陆-特韦斯股份有限公司 Method for operating a brake system and brake system
US11964640B2 (en) * 2017-12-14 2024-04-23 Continental Teves Ag & Co. Ohg Method for operating a brake system and brake system
EP3689691A1 (en) * 2019-01-31 2020-08-05 Kabushiki Kaisha Toyota Jidoshokki Brake system
US20210053546A1 (en) * 2019-08-19 2021-02-25 Zf Active Safety Gmbh Method for testing a brake fluid sensor
US11590957B2 (en) * 2019-08-19 2023-02-28 Zf Active Safety Gmbh Method for testing a brake fluid sensor

Also Published As

Publication number Publication date
SE444148B (en) 1986-03-24
DE2726465A1 (en) 1978-12-21
SE7806136L (en) 1978-12-12
FR2393706A1 (en) 1979-01-05
FR2393706B1 (en) 1986-06-20

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